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Add rdma channel #58

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37ae80a
init channel
JimyMa Dec 17, 2025
8095749
move channel from context to endpoint
JimyMa Dec 17, 2025
bf7f082
refine code
JimyMa Dec 18, 2025
2b9d8e4
add event drive for non-blocking loop
JimyMa Dec 20, 2025
f1a8284
Refactor: Implement event-driven state machine for RDMA proxy
JimyMa Dec 20, 2025
c6cfffc
add rdma_io_endpoint
JimyMa Dec 20, 2025
dee9b5c
refine interface
JimyMa Dec 22, 2025
d676a93
update interface
JimyMa Dec 23, 2025
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80 changes: 35 additions & 45 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -65,13 +65,7 @@ python example/python/p2p_rdma_rc_send_recv_torch.py --rank 1
#### NVLink Mode

```
# initiator
python example/python/p2p_nvlink.py --initiator-url "127.0.0.1:6006" --target-url "127.0.0.1:6007" --role initiator
```

```
# target
python example/python/p2p_nvlink.py --initiator-url "127.0.0.1:6006" --target-url "127.0.0.1:6007" --role target
torchrun --nproc_per_node=2 p2p_nvlink.py
```

#### NVShmem Mode
Expand Down Expand Up @@ -157,17 +151,17 @@ mkdir -p DLSlime/build && cmake -DFLAG=<ON|OFF> ..

The `FLAG` can be

| Flag | Description | Platform | default |
| :----------------------- | :------------------------------------ | :------- | ------: |
| `BUILD_RDMA` | Build RDMA Transfer Engine | Hetero | ON |
| `BUILD_PYTHON` | Build Python wrapper | Hetero | ON |
| `BUILD_NVLINK` | Build NVLINK Transfer Engine | GPGPU | OFF |
| `BUILD_NVSHMEM` | Build NVShmem Transfer Engine | NVIDIA | OFF |
| `BUILD_ASCEND_DIRECT` | Build Ascend direct transport | ASCEND | OFF |
| `BUILD_TORCH_PLUGIN` | Build DLSlime as a torch backend | Hetero | OFF |
| `USE_GLOO_BACKEND` | Use GLOO RDMA Send/Recv torch backend | Hetero | OFF |
| `BUILD_INTRA_OPS` | Use INTRA Collective OPS | GPGPU | OFF |
| `BUILD_INTER_OPS` | Use INTER Collective OPS (NVSHMEM) | NVIDIA | OFF |
| Flag | Description | Platform | default |
| :-------------------- | :------------------------------------ | :------- | ------: |
| `BUILD_RDMA` | Build RDMA Transfer Engine | Hetero | ON |
| `BUILD_PYTHON` | Build Python wrapper | Hetero | ON |
| `BUILD_NVLINK` | Build NVLINK Transfer Engine | GPGPU | OFF |
| `BUILD_NVSHMEM` | Build NVShmem Transfer Engine | NVIDIA | OFF |
| `BUILD_ASCEND_DIRECT` | Build Ascend direct transport | ASCEND | OFF |
| `BUILD_TORCH_PLUGIN` | Build DLSlime as a torch backend | Hetero | OFF |
| `USE_GLOO_BACKEND` | Use GLOO RDMA Send/Recv torch backend | Hetero | OFF |
| `BUILD_INTRA_OPS` | Use INTRA Collective OPS | GPGPU | OFF |
| `BUILD_INTER_OPS` | Use INTER Collective OPS (NVSHMEM) | NVIDIA | OFF |

> \[!Note\]
> Please enable `USE_MECA` when using DLSlime as a torch backend in Metax platform.
Expand Down Expand Up @@ -361,6 +355,7 @@ torchrun --master-addr 10.130.8.145 --master-port 6006 --nnodes 2 --nproc-per-no
| dlslime | 8 | 134,217,728 | 64 | 8 | 175.518 | 391530 |

### GDRDMA P2P Send/Recv

```
SLIME_QP_NUM=2 python bench/python/dlslime_torch_dist_sendrecv_bench.py --mode send --use-gpu --iterations 100
```
Expand All @@ -369,29 +364,28 @@ SLIME_QP_NUM=2 python bench/python/dlslime_torch_dist_sendrecv_bench.py --mode s
SLIME_QP_NUM=2 python bench/python/dlslime_torch_dist_sendrecv_bench.py --mode recv --use-gpu --iterations 100
```

| Message Size (bytes) | Avg Latency | Bandwidth | Device |
|------------------------|---------------|---------------|----------|
| 1,024 | 0.027 ms | 37.65 MB/s | GPU |
| 2,048 | 0.028 ms | 72.17 MB/s | GPU |
| 4,096 | 0.028 ms | 144.81 MB/s | GPU |
| 8,192 | 0.028 ms | 295.98 MB/s | GPU |
| 16,384 | 0.029 ms | 564.15 MB/s | GPU |
| 32,768 | 0.031 ms | 1069.90 MB/s | GPU |
| 65,536 | 0.031 ms | 2083.20 MB/s | GPU |
| 131,072 | 0.032 ms | 4038.17 MB/s | GPU |
| 262,144 | 0.036 ms | 7299.42 MB/s | GPU |
| 524,288 | 0.042 ms | 12495.87 MB/s | GPU |
| 1,048,576 | 0.053 ms | 19961.18 MB/s | GPU |
| 2,097,152 | 0.075 ms | 27924.99 MB/s | GPU |
| 4,194,304 | 0.117 ms | 35716.55 MB/s | GPU |
| 8,388,608 | 0.212 ms | 39637.66 MB/s | GPU |
| 16,777,216 | 0.387 ms | 43386.08 MB/s | GPU |
| 33,554,432 | 0.871 ms | 38532.98 MB/s | GPU |
| 67,108,864 | 1.665 ms | 40298.91 MB/s | GPU |
| 134,217,728 | 3.159 ms | 42487.69 MB/s | GPU |
| 268,435,456 | 5.643 ms | 47572.53 MB/s | GPU |
| 536,870,912 | 11.137 ms | 48204.20 MB/s | GPU |

| Message Size (bytes) | Avg Latency | Bandwidth | Device |
| -------------------- | ----------- | ------------- | ------ |
| 1,024 | 0.027 ms | 37.65 MB/s | GPU |
| 2,048 | 0.028 ms | 72.17 MB/s | GPU |
| 4,096 | 0.028 ms | 144.81 MB/s | GPU |
| 8,192 | 0.028 ms | 295.98 MB/s | GPU |
| 16,384 | 0.029 ms | 564.15 MB/s | GPU |
| 32,768 | 0.031 ms | 1069.90 MB/s | GPU |
| 65,536 | 0.031 ms | 2083.20 MB/s | GPU |
| 131,072 | 0.032 ms | 4038.17 MB/s | GPU |
| 262,144 | 0.036 ms | 7299.42 MB/s | GPU |
| 524,288 | 0.042 ms | 12495.87 MB/s | GPU |
| 1,048,576 | 0.053 ms | 19961.18 MB/s | GPU |
| 2,097,152 | 0.075 ms | 27924.99 MB/s | GPU |
| 4,194,304 | 0.117 ms | 35716.55 MB/s | GPU |
| 8,388,608 | 0.212 ms | 39637.66 MB/s | GPU |
| 16,777,216 | 0.387 ms | 43386.08 MB/s | GPU |
| 33,554,432 | 0.871 ms | 38532.98 MB/s | GPU |
| 67,108,864 | 1.665 ms | 40298.91 MB/s | GPU |
| 134,217,728 | 3.159 ms | 42487.69 MB/s | GPU |
| 268,435,456 | 5.643 ms | 47572.53 MB/s | GPU |
| 536,870,912 | 11.137 ms | 48204.20 MB/s | GPU |

### Heterogeneous Interconnection​

Expand Down Expand Up @@ -421,7 +415,3 @@ SLIME_QP_NUM=2 python bench/python/dlslime_torch_dist_sendrecv_bench.py --mode r
| D | 29317.66 | 28683.25 | 24515.30 | 27491.33 |

detailed results: [bench](bench/results)




25 changes: 0 additions & 25 deletions bench/cpp/CMakeLists.txt
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204 changes: 0 additions & 204 deletions bench/cpp/transfer_bench.cpp
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